I just got back from a 2 week vacation, and before I left, I set up an automated sprinkler system to run every night for 1/2 hour, and when I returned from vacation, I noticed that some of my blueberries are flowering right now.

I only had a minute to peruse the garden, but I know there's at least 3 different bushes flowering. 1 is a Tophat, and the other 2 I will have to cross reference with my notes bc I forget which varieties they are.

I was hand watering with rain water all summer prior to this, and the sprinkler is running off our tap water which is a rather "hard" water, which shouldn't be ideal.

Why are they flowering again now? Should I pinch the flowers, or can I get a second harvest?!?!

It just seemed strange, so I figured I'd see what you guys had to say...